Inactive

********Amendment 2 was inadvertently posted under the incorrect FBO posting, and for the purposes of amendment acknowledgement, is being re-posted here. The changes in Amendment 2 have been supersede... ********Amendment 2 was inadvertently posted under the incorrect FBO posting, and for the purposes of amendment acknowledgement, is being re-posted here. The changes in Amendment 2 have been superseded by the changes of Amendment 3. However, please note that the bid opening date has been extended to Tuesday, September 17th at 10am PST.**********

Inactive

PROJECT DESCRIPTION The Marysville Ring Levee (MRL) Phase 2C project is located in Yuba County CA, on the right bank of the Yuba River, in the city of Marysville. The project consists of degrading a s... PROJECT DESCRIPTION The Marysville Ring Levee (MRL) Phase 2C project is located in Yuba County CA, on the right bank of the Yuba River, in the city of Marysville. The project consists of degrading a section of the levee, constructing an approximately 90 foot deep cutoff wall using the Deep Mix Method, and reconstructing the degraded levee section. Construction must be completed within one construction season (15 Apr 2020 to 31 Oct 2020). The cutoff wall will be constructed at the center line of the levee. One end of the wall is adjacent to an active railroad and the other end is adjacent to State Highway 70. Approximately 6 to 8 feet of levee section material will be degraded (approx. 13,500 Cubic Yards (CY) to provide a platform for construction of the cutoff wall. The levee will be reconstruction using levee embankment (fill material) (approx. 17,000 CY) and levee embankment (clay cap) approximately (2,000 CY). An existing shallow cutoff wall, which is approximately 350 feet long (Station 237+00 to Station 240+50) will also need to be degraded to the construction platform and the new cutoff wall will be constructed parallel to the existing wall. The cutoff wall must be soil-cement-bentonite (SCB) constructed using in-situ soil mixing methods classified as either: Wet Rotary Shaft (WRS), Wet Rotary End (WRE), Wet Rotary and Jet End (WJE), or Wet Vertical Panel (WVP); as described in the Federal Highway administration Design Manual: Deep Mixing For Embankment and Foundation Support. Methods that do not use mechanical soil cutting or mixing are NOT acceptable. The cutoff wall minimum width is 2 feet and the cutoff wall length is approximately 1,100 feet. The cutoff wall will require a demonstration section to be constructed and approved before construction of the production wall can begin. The cutoff wall depth will vary up to 90 feet and the construction equipment must be capable of constructing the cutoff wall 20 feet deeper than the maximum depth shown on the drawings. The total square footage of the cutoff wall is approximately 91,000 ft^2. The in-situ soil mixing must produce an incompressible, relatively low-strength, low- permeability, continuous seepage cutoff wall with an appropriate overlap between elements and/or headings to ensure continuity to full depth. The cutoff wall must consist of either a series of overlapping SCB elements formed underground, through and beneath the levee, or by a full-depth horizontal advancement. The permeability must be less than 5 x 10^-7 centimeters per second (cm/sec) with the strength of the cutoff wall between 50 and 300 pounds per square inch (psi). The total amount of excavation for the levee degrade is approximately 13,500 CY, 17,000 CY will be used as levee fill material, and 2,000 CY will be used as clay cap. The embankment will be reconstructed and erosion control measures must be provided in disturbed areas. As a matter of contractor responsibility per FAR 9.104-1, the apparent low bidder will be required to provide evidence demonstrating that it possesses experience in performing in-situ soil mixed cutoff wall construction projects within the last 10 years (i.e., since July 2009). The qualifying experience must consist of successful completion of a MINIMUM two soil-cement or soil cement- bentonite cutoff wall projects using an in-situ soil mixing method as described above. The cutoff wall projects must have a minimum depth of 70 feet and a minimum area of 100,000 ft2, with a minimum width of 36 inches. The cutoff wall properties must have a maximum permeability of 1 x 10^-6 cm/sec. Multiple headings on one contract are considered as one construction project and project experience claimed must have been performed by the entity that will perform the work of this solicitation. In submitting a bid, the contractor is asserting a promise to perform the contract requirement as described by the plans, specifications, terms and conditions contained in the solicitation. Additionally, the contractor is asserting they will comply with the following requirements for the following key personnel: The Soil Mixing Equipment Operator(s) must have experience in using similar equipment to be used for this solicitation in a minimum of two successfully completed projects and a minimum of five years of experience similar to the projects described in paragraph Contractor above. The projects listed in the resume must be similar to the requirement described in this solicitation notice in the following three ways: comparable scope, complexity and physical size completed; and The Soil-Mixed Cutoff Wall Specialist(s) must be experienced in providing supervision of mix design and field control composition and mixing of the soil cement or soil-cement bentonite using in situ soil mixing equipment. The projects listed in the resume' must include a minimum of two successfully completed projects and a minimum of five years of experience on projects similar in scope, project type, physical size and complexity to this solicitation and meeting the project criteria in paragraph Contractor above. The experience must include to the following four criteria: (1) controlling composition, mixing, placing, sampling, testing and maintaining bentonite/cement slurry; (2) supervision of alignment, verticality, and depth of soil mixing equipment; (3) controlling blending, mixing, sampling, and testing in-situ material; and (4) a thorough knowledge of soil mixing and cutoff wall construction equipment and material testing. ADDITIONAL INFORMATION - As stated in paragraph one of the Project Description above, the contractor must finish within one construction season (15 Apr 2020 to 31 Oct 2020).There are two active construction projects in the same vicinity and will need coordination on all construction schedules and overlaps. - Marysville Project is seeking the following specialized expertise for the 2C Construction Contract for award by approximately 30 September 2019. - Levee is within Union Pacific Railroad (UPRR) right-of-way and will require contractors and employee to take UPRR training. - Biz Johnson road will be closed during construction but contractor will still be required to provide flaggers for Bridge Contractor (5th Street Bridge) to enter/exit project for equipment. In accordance with FAR 36.204(g), the estimated value of the resulting contract is expected to be between $5,000,000 and $10,000,000. PLEASE BE ADVISED THAT THIS PROJECT MAY BE DELAYED, CANCELLED OR REVISED AT ANY TIME DURING THE PRESOLICITATION, SOLICITATION, SELECTION, EVALUATION, NEGOTATION AND/OR FINAL AWARD PROCESS.